EAA/ANN AirVenture Innovation Preview

AD NUMBER: 2006-10-12
MANUFACTURER: BAE Systems
SUBJECT: Airworthiness Directive 2006-10-12SUMMARY: The FAA is
adopting a new airworthiness directive (AD) for all BAE Systems
(Operations) Limited Model BAe 146 airplanes and Model Avro 146-RJ
airplanes. This AD requires repetitive replacement of the elevator
servo tab hinge bearings, elevator servo tab mechanism
bearings,elevator trim tab hinge bearings, and elevator trim tab
drive rod bearings with new bearings. This AD results from reported
incidents of flight control surface restrictions due to the
deterioration of flight control surface bearings.. We are issuing
this AD to prevent corrosion of flight control surface bearings and
freezing of moisture inside the bearings, due to loss of
lubrication in the bearings,which could lead to flight control
restrictions and result in reduced controllability of the
airplane.